script writing

[Donna Powell]

I am trying to write a script that will allow me to monitor disk space on all my boxes. I am fairly new to script writing, but I can read scripts very well. My plan is to use diskinfo to give me the info that I need pertaining to each disk on the system. This is what I have done so far:
I have created a variable that holds all the rdsk names on the box, but now I need to execute the diskinfo command. My problem is my variable contains more then one drive and my diskinfo command will only run one character device at a time. What do i need to do to get the system to read my variable and run the diskinfo command to give me the info I need. Help, fairly new to script writing

[A. Clay Stephenson]

Hi Donna:

I don't think diskinfo is what you really want to be using but here's how to do it:

DISKS="/dev/rdsk/c0t6d0 /dev/rdsk/c1t6d0"
for DISK in ${DISKS}
do
diskinfo -v ${DISK}
done

A better way (or actually several) to monitor
disk usage can be found in this thread:
http://forums.itrc.hp.com/cm/QuestionAnswer/1,1150,0xcae0f9beca68d511abcd0090277a778c,00.html

Regards, Clay

[Jennifer Young_1]

you may want to try using bdf instead. my script runs a bdf then cuts out the 5th field and then sees if each one is greater than 90, if so it pages me. if you want the script let me know.

[James R. Ferguson]

Hi Donna:

Try this:

#!/usr/bin/sh
DIR=/dev/rdsk
for D in `ls $DIR`
do
diskinfo $DIR/$D
done

...or...

#!/usr/bin/sh
DIR="c0t6d0 c1t1d0 c1t1d1"
for D in $DIR
do
diskinfo "dev/rdsk/$D"
done

Regards!

...JRF...

[Donna Powell]

James, Clay and Jennifer, thanks for your replys, James I used your suggestion and it worked just fine, but Clay I think your right diskinfo is not really giving me the info that I need. I am looking to get infomation on all of my harddrives configured on the system. I need to know how big each drive is and how much free space I have available to work with. We have several boxes and I then need to do a remsh to each box and get the same info. I also need to wean out EMC's Any other suggestions. thanks minor league script writer

[James R. Ferguson]

Hi Donna:

You need to look at the output from things like 'ioscan', 'pvdisplay' and 'vgdisplay'.

Based on what you are trying to assemble, a quick, free summary can be seen in the manifest file from Ignite.

I hope you are making Ignite recovery tapes of your systems (using 'make_tape_recovery') . If you are, everytime you do, you get a "free" configuration report, including a very nice summary of your LVM configuration. Look at:

/var/opt/ignite/recovery/latest/manifest

...JRF...

[Rob Smith]

Hi, if you want a script that will notify you when disk usage reaches a certain level then try:
#!/usr/bin/sh
##

bdf | grep -iv filesystem | awk '{print $6 " "$5}' | while
read LINE; do
PERC=`echo $LINE | cut -d "%" -f1 | awk '{ print $2 }'`
if [[ $PERC -gt 90 ]]; then
echo "${PERC}% ALERT!" | mailx -s "${LINE} on `hostname` is almost full" root
fi
done

exit

This will send an e-mail to root. Or if you a complete report on LVM, disks etc, then try the script that is attached. I believe it was written by an HP engineer. I think someone in the forums sent it to me, anyway, it is very complete, I run it on a monthly basis. Hope this helps.

Rob

[Seth Hollist]

Have any of you tried using free web based monitoring tools with e-mail and pageing fetures, such as Big Brother (bb4.com).

[Shahul]

Hi

I have a script here, That I am writng here, which will ask a vg name then U will have to type the VG name. Then it will list the diskinfo of all PVs in that VG.

echo "Enter the VG"
read vg
vgdisplay -v /dev/$vg | grep /dev/dsk | awk '{print$3}' > file1
sed 's/dsk/rdsk/' file1 > file2
>file3
while grep /dev file2 > /dev/null
do
diskinfo `cat file2 | line` >> file3
cat file2 | grep -v `line` > file2
done
cat file3

Please check up this will do or not.


Best of luck

Shahul

[Paula J Frazer-Campbell]

Hi Donna

This is a script I use,
Author was Adreas Voss.
I called it space check and cronned it to run twice a day.


It was posted by Andreas some time ago and does the job very well.

HTH

Paula

----------------------CUT HERE-------------------------
#!/sbin/sh
# Check server diskspace
# check with bdf filesystems on multiple servers
# Ensure server is in /etc/hosts file
# (c) hpux@voss2000.de 2000-10-11
# this script can/should be run with non root user
# for remote shell there has to be set permission in $HOME/.rhosts
# at the remote system(s)
# the script uses /tmp/bdfcheck directory to store percentage of
# each filesystem for history to avoid multiple message generation

MAILUSER="root;fred@company.com " # <-- put here the email address for sending
HOSTLIST="N-0 k1 k2" # HIGHWATERMARK=95 # max percentage of filesystem usage

[ ! -d /tmp/bdfcheck ] && mkdir /tmp/bdfcheck

for host in $HOSTLIST
do
{
if [ $host = $(hostname) ]
then
bdf -t hfs -t vxfs -l
else
remsh $host bdf -t hfs -t vxfs -l
fi
}|tail +2 |awk -vhost=$host '{
if(length(fs)>1)
fs=fs $0;
else
{
if(NF == 1)
{
fs=$1;
continue;
}
else
fs=$0
}
printf("%-10s: %s\n",host,fs);
fs="";
}'
done |
awk -vmax=$HIGHWATERMARK -vdate="`date`" 'BEGIN{first=1}
{
percent=$7;
hostname=$1;
filesystem=$NF;
gsub("/","_",filesystem);
sub("%","",percent);
percent=sprintf( "%d",percent);
histfile="/tmp/bdfcheck/" hostname filesystem;
getline oldpercent close(histfile);
print percent >histfile;
line=$0;
if(percent > oldpercent && percent > max)
{
if(first==1)
{
printf("%s\n\nFilesystems with more than %d%% usage:\n \n",date,max);
printf("%-10s Filesystem kbytes used avail %%used Mounted on\n","Hostname");
first=0;
}
printf("%s\n",line);
}
}' >/tmp/bdf_$$

if [ -s /tmp/bdf_$$ ]
then
cat /tmp/bdf_$$ | mailx -s 'FILESYSTEMS WARNING' $MAILUSER
fi
rm -f /tmp/bdf_$$
cd /tmp/bdfcheck
rm *
-------------------------cut here -------------------